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A man is mourning the loss of his partner, who died one day after the birth of their son.

Sarah Bertrand, 29, gave birth to baby Julian on May 9 at 4:31 p.m.

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“Just over 24 hours later… Sarash died of a pulmonary embolism that stopped her heart instantly,” dad Jean Luc Montou wrote on a GoFundMe page.

Montou shared photos to Facebook of Sarah holding her new baby boy at the hospital, surrounded by her family.

“I had never seen her so strong, so confident, and so joyful as when she held her new baby boy,” wrote Montou. “While she will be missed so much, I want to honor her memory by raising Julian to be the best man I can make him, but it will be so hard with her sudden loss.”

Montou launched a GoFundMe page to raise money to help with funeral expenses and the cost of single-handedly raising a baby.

If you would like to donate, click here.